In as much as bitcoin wallet is concerned, the key to the bitcoin wallet is very much important. Upon opening an account, a wallet address a private key is also generated which will give you access to your account and to carry out transactions. It is advisable you store it very safe because it not well protected you just might be exposed to danger such as hacker's and it might result to you forfeiting that wallet which means you are losing that account irrespective of the amount value of bitcoin in it.. You should save your wallet address keys in atleast 3 different places where you have access to anytime and you can get it anytime you want to. When you loss your private keys, I doubt the possibility of you getting a new one and as a matter of fact if you loose your bitcoin wallet keys, consider your money gone.